Installation instructions
99-2022
9
Interface Installation
*Important: Before beginning any of
the following, disconnect the negative
battery terminal to prevent an accidental
short circuit.
The included interface with this kit is
designed to retain Onstar, and retain factory
warning chimes, and keep the factory
climate display active. It also provides a
12-volt accessory output, mute, park brake,
speed signal and reverse output.
Interface Components
Tools required for installation
IGNITION
TERMINALS
WIRE
CUTTER
M3.5
M2.6
M3
M5
M4
ISO
6
2.5
1.5
• Cutting Tool • Tape • Crimping Tool • Connectors (I.E. butt-connectors, bell caps, ECT…)
• Female Spade Connectors (Optional)
• A) Interface • B) Harness
A
B